EXCLUSIVE: Garry Marshall, who ruled the sitcom world in the 1970s with hit series Happy Days, Laverne & Shirley, Mork & Mindy and The Odd Couple, has teamed with prolific producer Aaron Kaplan for a multi-camera comedy project at Nickelodeon. Marshall will co-write the script with his son, director Scott Marshall (Keeping Up With The Steins), and is set to direct. The multi-camera comedy, based on an idea by Kaplan, features all kids (10 to 12 years old) playing grown-up characters in the vein of Alan Parker’s gangster musical Bugsy Malone starring young Scott Baio and Jodie Foster. Framed as a crime procedural, the sitcom centers on a male cop, his DA brother and the female judge they both have a crush on. Also a corrupt mayor and the woman who runs the local “malt shoppe” who is “connected”. Garry Marshall, Scott Marshall and Kaplan executive produce. Kaplan and the Marshalls all have a recent history with Nickelodeon. The Kaplan-produced breakout Nick at Nite/NickMom comedy seriesInstant Momrecently had its freshman season expanded to 26 episode and was renewed for a 20-episode second season. Kaplan also produced Nick’s comedy series Wendell & Vinnie. Meanwhile, Garry Marshall did a guest turn on Nick’s comedy series See Dad Run, toplined by Happy Days alum Baio, in an episode that was directed by Scott Marshall. The father-son duo previously teamed to write a multi-camera project for Fox last season. Following a successful TV run, Garry Marshall segued to feature directing, helming such films as Pretty Woman, The Princess Diaries, Beaches and Runaway Bride. He is repped by CAA; Scott Marshall is with Preferred Artists.